Drinking accessory



FIG. 1 is a front perspective view of our new design of a drinking accessory;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom perspective view thereof.

The dash-dot lines in the Figures represent the boundary of the claimed design. The dash-dash lines in the Figures represent portions and environmental elements that form no part of the claimed design. None of the broken lines form part of the claimed design. 

CLAIM The ornamental design for a drinking accessory, as shown and described. 